Connecticut Capital Gains Tax Calculator
Calculate your 2026 capital gains tax in Connecticut. Connecticut taxes capital gains at rates up to 6.99%, plus federal taxes.
Original purchase price
Renovations, additions — added to your basis
Agent commissions, closing costs, title & transfer fees
Total Tax
$47,780
23.9% effective rate
Capital Gain
$200,000
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Tax Breakdown
Sale price minus selling costs and all taxes (before any mortgage payoff).
Federal
$33,800
CT State
$13,980
Effective Rate
23.9%
Connecticut Capital Gains Tax
Connecticut taxes capital gains as ordinary income at rates up to 6.99% (on taxable income over $500,000 single, $1 million married filing jointly). Higher earners also lose the benefit of the lower brackets through phase-outs and recapture amounts. This calculator applies the 6.99% top rate to the whole gain, so it overstates the tax for most filers.
Long-term: Taxed as ordinary income (up to 6.99%)
Short-term: Taxed as ordinary income (up to 6.99%)
NIIT Applied
The 3.8% Net Investment Income Tax applies because your income exceeds $200,000.
Connecticut Capital Gains Tax Details
Tax Treatment
Tax Type
Taxed as ordinary income
Maximum Rate
6.99%
Available Exemptions
- Federal home-sale exclusion ($250K single / $500K married filing jointly) flows through to the Connecticut return
- Selling costs and capital improvements reduce the taxable gain
Connecticut Capital Gains Tax FAQ
Official References
- IRS Topic 409: Capital Gains and Losses
Federal capital gains tax guidance
- IRS Publication 523: Selling Your Home
$250K / $500K home-sale exclusion, basis adjustments, and selling expenses
- Connecticut General Statutes § 12-700 — Income Tax Rates
Connecticut state capital gains rules
This calculator provides estimates. Consult a tax professional for advice specific to your situation in Connecticut.
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